The Twenty-Seven Stations

The wheel below is the essay in one object. Its outer ring is the twelve signs; inside it, the twenty-seven stations with their emblems, Punarvasu at the top and the road running clockwise; the pointer is the day after conception, and the drawing at the centre is the child as the embryologists describe it at that day. The panel beside the wheel reads, for whatever station the pointer is in, the star's name and god and figure and the story that goes with it, what happens in the womb in those ten days (the dots on the inner track are the dated milestones, and they light as the pointer passes them), where the pointer stands in sign and pāda and tārā, and my reading of the station with its labels. Drag the pointer, press play for a thirty-six-second tour, click an emblem on the ring or a station in the grid below, or use the keyboard: arrows move a day, shift-arrows ten, Page Up and Page Down a station, the digits 1, 2 and 3 jump to the three watches.

Below the grid there is one more thing, for readers who are not reading this abstractly. Enter the first day of a last period, or a date of conception, or a due date, and the wheel will show where that pregnancy stands today, mark it in red on the ring, and list the dates on which each of the twenty-seven stations begins. The arithmetic is done in your browser; nothing you type is stored or sent anywhere.

Days 0–10 after conception · obstetric weeks 2–3.4Figure a house (gṛha) (popularly a bow and quiver)Sign Mithuna pādas 1–3 · Karka pāda 4 · tārā Janma, birthStar Castor and Pollux (α, β Geminorum)

Punarvasu is two stars, Castor and Pollux, and the ritual texts name it in the dual: punarvasū, the two Punarvasus.^[1] The name means “wealth again,” the return of what was lost — the light after the monsoon, the herd after the raid — and its classical figure is a house, gṛha.^[4,5] Its goddess is Aditi, the boundless: “Aditi is the heaven, Aditi is mid-air, Aditi is the Mother and the Sire and Son; Aditi is all gods, Aditi five-classed men, Aditi all that hath been born and shall be born.”^[10] Three of its four pādas lie in Mithuna, the Couple; the fourth crosses into Karka, the Crab, the Moon's own sign, the sign of the home.

The first ten days of a human life are the days of the couple. Two cells, each carrying half a set of chromosomes, meet in the fallopian tube and become one; about thirty hours later the one divides into two, then four, then eight, and by the third or fourth day it is a morula, a mulberry of sixteen to thirty-two cells, still inside the shell that has surrounded the egg since the ovary. On the fifth day it hollows into a blastocyst, a sphere with a knot of cells at one pole, and on the fifth or sixth it does the thing embryologists call hatching: it breaks its shell, the zona pellucida, and swims free. On the sixth or seventh day it touches the wall of the womb and begins to bury itself; by the eighth it has two layers; by the ninth the outer layer has opened little lakes, lacunae, and the first hormone of pregnancy is reaching the mother's blood.^[24,26,27]

Text Order Image A dual star in the sign of the Couple opens the sequence at the one moment in a life when two are literally becoming one, and its goddess is the unbound one — a good goddess for a cell whose first independent act is to break out of its shell. That is text and image. The order is stricter. Divide the station's ten days into its four pādas of two and a half, and the first three, the ones in Mithuna, hold fertilization, cleavage, the blastocyst and the hatching — the whole free-swimming life of the embryo — while the fourth pāda, the only one in Karka, begins on day seven and a half, and implantation begins on day six or seven. The pāda that crosses into the Moon's sign, the sign of the home, is the pāda in which the embryo finds a house. Punar-vasu: a dwelling, again.

Set the wheel to station 1 →

Days 20–30 after conception · obstetric weeks 4.9–6.3Figure a wheel (cakra) (popularly a coiled serpent)Sign Karka pādas 1–4 · tārā Vipat, dangerStar δ, ε, η, ρ and σ Hydrae — the Water-Snake's head

Āśleṣā is the embrace, the coiling-round; the verb is ā-śliṣ, to cling to, to entwine.^[5] Its gods are the Sarpas, the serpents; its classical figure is a wheel, and every practitioner draws it as a coiled snake.^[1,4,7] In the sky it is the head of Hydra, the water-serpent. It is, in the tradition's judgment, a hard station — a place of poison, of binding, of what clings and will not let go.

Neurulation is the one process in embryology that everyone has seen drawn as a serpent. A flat plate of cells along the embryo's back thickens, its edges rise into two folds, the folds arch toward each other and fuse — beginning in the middle, on the twenty-first or twenty-second day, and zipping in both directions — until the plate has become a tube. The head end of the tube closes about the twenty-fifth day, the tail end about the twenty-seventh or twenty-eighth; the tube is the brain and the spinal cord.^[24,26] In the same ten days the segments of the back, the somites, appear along its length; the heart, a simple tube itself, begins to beat on the twenty-second or twenty-third day; the buds of the arms appear on the twenty-sixth; and the whole embryo, which had been a flat disc, folds head-to-tail and side-to-side into a C, a coil, with the tube running down its convex back.^[26]

Text Order Image The tube that rolls up and closes along its length, the body that curls into a coil around it, the somites like the segments of a snake's back: the serpents' station is the station in which the embryo is most a serpent, and the calendar puts the closing of the tube — days twenty-two to twenty-eight — squarely inside days twenty to thirty. The tradition's wariness is not misplaced either. A tube that fails to close in these days is the commonest grave malformation of the human embryo; the folic acid that every pregnancy is now advised to begin before conception exists to see Āśleṣā safely through.

Set the wheel to station 3 →

Days 40–50 after conception · obstetric weeks 7.7–9.1Figure the front legs of a bed (mañca) (popularly a swinging hammock; a fig tree)Sign Siṃha pādas 1–4 · tārā Pratyari, obstacleStar δ and θ Leonis

The two Phalgunīs are one bed. The classical figure of this star is the front legs of a bed, mañca, and of the next the back legs; the popular emblem is a swinging hammock.^[4,7] The Vedic lists give this star to Aryaman and the next to Bhaga; the jyotiṣa lists reverse them, and I follow the jyotiṣa order because it is the one the tradition of the wheel uses.^[1,3] Bhaga is the god of fortune, of the share, of the marriage-bed — bhaga is also a word for the womb — and he is the god who was blinded: at the sacrifice of Dakṣa, when the offering was set before him, it burnt out his eyes.^[5,12]

Sex is not decided at conception. The chromosomes are, but for six weeks the gonad is indifferent, a ridge of tissue that could become either thing, and the body that carries it looks the same whether it will be a boy or a girl. On about the forty-first day after fertilization, in an embryo with a Y chromosome, a single gene, SRY, switches on in that ridge, peaks about the forty-fourth day, and turns it toward testis; in an embryo without it nothing switches on, and the ridge becomes an ovary.^[30] That switch is the fork of sex, and it falls in this station. In the same ten days the fingers appear as rays in the plate of the hand, the elbows bend, and — about the forty-first to forty-fourth day — pigment appears in the back of the eye, so that the embryo, which until now had no visible eyes, has two dark spots where its eyes will be.^[24,26]

Text Order Image The god of the marriage-bed keeps the station in which the body decides what it will bring to a marriage-bed. That is the order-fact, and it is exact to the day. The image is stranger, and I offer it only as one: Bhaga is the god who lost his eyes, and his station is the one in which the embryo's eyes first darken and become visible. The blinded god watches the eyes appear.

Set the wheel to station 5 →

Days 60–70 after conception · obstetric weeks 10.6–12Figure a hand (kara)Sign Kanyā pādas 1–4 · tārā Vadha, deathStar δ, γ, ε, α and β Corvi — the Crow

Hasta means the hand, and that is its whole name: five stars of Corvus, the Crow, that the tradition saw as a palm and fingers. Its god is Savitṛ, the Sun as impeller, the power that sets things going, whom the Ṛgveda calls hiraṇyapāṇi, golden-handed, and hiraṇyahasta, gold-handed.^[1,11] The Brāhmaṇas tell why: at Dakṣa's sacrifice the fore-portion of the offering, which had blinded Bhaga and knocked out Pūṣan's teeth, cut off Savitṛ's hands, and the gods gave him two of gold.^[11,12]

In the seventh station the hand becomes a hand. Its fingers separated only last week; now, at about the sixtieth day — ten and a half weeks by the obstetric count — a touch on the palm makes them close. That grasp was the earliest reflex Davenport Hooker could elicit in his famous studies of the 1930s and 1940s, and it comes before almost anything else the fetus can do.^[31] In the same ten days the nails begin at the fingertips, and on the pads of the fingers the first ridges rise that will, over the next six weeks, become fingerprints.^[24,32] The eyelids, formed last station, fuse shut and will stay shut for four months; the gut, which has been herniated into the umbilical cord since the sixth week for want of room, returns to the abdomen; and the interim kidney, the mesonephros, which has filtered the embryo's blood since the fourth week, regresses as the permanent one takes over.^[24,25]

Text Order Image The station named the Hand is the station in which the hand first grasps and first grows nails — text and order together, with no help from me. The god's story adds the image: Savitṛ's hands were cut off and remade in gold; the fetus's are being made for the first time, and what they will hold no one yet knows.

Set the wheel to station 7 →

Days 80–90 after conception · obstetric weeks 13.4–14.9Figure coral (vidruma) (popularly a young sprout swaying in the wind; a sword)Sign Tulā pādas 1–4 · tārā Atimitra, great friendStar Arcturus (α Boötis)

Svātī is Arcturus, the brightest star of the northern sky, standing alone far from the ecliptic — which is why the tradition called it svātī, the self-going, the independent one.^[5] Its god is Vāyu, the wind, the breath of the cosmos and of every body; its classical figure is a piece of coral, and its popular one a young plant bending in the wind.^[1,4,7]

The fetus has been practising breath since Hasta, and in Svātī the practice becomes a habit. Fetal breathing movements — contractions of the diaphragm that draw amniotic fluid, not air, into the lungs and push it out — appear on ultrasound from about the tenth week and become frequent through the twelfth to fifteenth; and alongside them come hiccups, sharp rhythmic jerks of the same muscle, which are in fact the diaphragm's commonest movement for the whole first half of pregnancy.^[33,45] In these ten days the sex is distinguishable from the outside, at twelve weeks after fertilization; the yolk sac, which fed the embryo before the placenta could, has shrunk to a vestige, and the placenta, which took over from the ovary's corpus luteum at about the eighth week, feeds the child alone;^[35] and the fetus is, relative to the fluid around it, as small and as free as it will ever be — a swimmer in a sea it has not yet grown to fill.^[24]

Text Image The god of wind keeps the station in which the fetus rehearses wind, and that is text; but the rehearsal begins a station earlier and continues for months, so I do not claim the order. The image is the plant bending: a fetus at thirteen weeks turns and stretches and somersaults in more room than it will have again, and the independence the star is named for is, for these ten days, a fact of hydraulics.

Set the wheel to station 9 →

Days 100–110 after conception · obstetric weeks 16.3–17.7Figure a heap of offerings (bali) (popularly a lotus; a triumphal arch)Sign Vṛścika pādas 1–4 · tārā Sampat, wealthStar β, δ and π Scorpii

Anurādhā is the star that follows Rādhā — Viśākhā's older name — and the tradition heard in it devotion, following, the success that comes of loyalty.^[5] Its god is Mitra, the Friend, the Āditya of alliance and of the bond between persons, who is invoked with Varuṇa as the keeper of what is agreed.^[1] Its classical figure is a bali, a heap of offerings; the popular one is a lotus.^[4,7]

For sixteen weeks the mother has known the child by absence — a period that did not come, a nausea, a line on a test, a picture on a screen. In Anurādhā she begins to feel it. Quickening, the first perception of fetal movement from inside, comes at eighteen to twenty weeks for most first-time mothers, but about a week earlier for women who have carried before and know what they are feeling for, and the reported range begins at fourteen.^[36] In the same ten days the lanugo, a fine fur, has covered the body; the gut has begun to store the meconium it will pass after birth; and the womb has risen above the navel, so that the pregnancy, felt from inside, is now also visible from outside.^[24]

Text Order Image The god of the bond between persons keeps the station in which the bond is first felt from both sides — order, for the mothers who know what to feel for, and a station early for the rest, whom Jyeṣṭhā will catch. The heap of offerings is the essay's image for that first movement: the child's first gift, given before it can know it is giving.

Set the wheel to station 11 →

Days 120–130 after conception · obstetric weeks 19.1–20.6Figure a lion's tail (siṃhapuccha) (popularly a bundle of roots)Sign Dhanus pādas 1–4 · tārā Kṣema, well-beingStar λ, υ, κ, ι, θ, η, ζ, μ, ε Scorpii — the Scorpion's tail

Mūla is the root. It is the tail of the Scorpion, a curl of stars that points at the centre of the galaxy; its goddess is Nirṛti, dissolution, the un-doing of order, whom the Nakṣatreṣṭi sends away “with averted face”; its classical figure is a lion's tail and its popular one a bundle of roots.^[2,4,5,7] The Vedic Saṃhitā had given the star to the Fathers; the Brāhmaṇa gave it to Nirṛti, and the astrologers kept her.^[1,2]

The roots of every later generation are counted in Mūla, and then thinned. A girl's ovaries hold, around the twentieth week, more germ cells than they will ever hold again — Baker counted some 600,000 at two months, a peak of 6.8 million in the fifth month, and about two million at birth — and from that peak the culling never stops: most are dissolved before she is born, and of the two million that remain a few hundred will ever be ovulated.^[38] The brain is doing the same thing on its own scale. Neurons are made in enormous excess and then removed; in the one direct count of the human cortex the number peaks near the twenty-eighth week and falls thereafter, and across the nervous system generally something like half the cells born are culled.^[39] Brown fat, which will burn to warm the newborn, first appears about now; beneath the milk teeth the buds of the permanent ones are forming.^[24,51]

Text Order Image The station of the root and of un-doing is the station in which the body's excess is counted and cut. The germ cells are the root in the plainest sense — every grandchild descends from a cell that is present, and being counted, in these ten days — and Nirṛti's dissolution is the atresia that begins at the peak. The order holds for the peak of the germ line, which the textbooks put at twenty weeks; the neuronal pruning is a longer story that I let the goddess stand for.

Set the wheel to station 13 →

Days 140–150 after conception · obstetric weeks 22–23.4Figure an elephant's tusk; a cot (mañcaka)Sign Dhanus pāda 1 · Makara pādas 2–4 · tārā Sādhaka, accomplishmentStar ζ and σ Sagittarii

Uttarāṣāḍhā completes the unconquered. Its gods are the Viśvedevas, the All-Gods, invoked together when no single power will do; its figure is the elephant's tusk again, or a cot.^[1,4] Counted from Punarvasu it is the sādhaka of the second cycle — the star of accomplishment, of the thing achieved.^[8]

Before Uttarāṣāḍhā no child born could live. After it, some can. In the largest recent American series, of children born at twenty-two completed weeks about one in ten survived to go home; at twenty-three, one in two; at twenty-four, about seven in ten.^[41] The station runs from the twenty-second week to the twenty-third and a half, and it is the threshold of viability by any definition anyone uses: the lungs' terminal sacs are beginning, the first surfactant is not far off, and the brain has enough wiring to sustain breathing when it is helped.^[24,41] Nothing in the whole of pregnancy changes so much, in so few days, as the answer to the question could it live?

Text Order Image “Unconquered” is the right word for what happens in these ten days: a threshold crossed inside a single station, from no chance to an even one. It takes every organ system at once — heart, lungs, gut, kidneys, brain, skin, each just barely enough — and every organ system at once is what the Viśvedevas are for. That the tārā of this station is sādhaka, accomplishment, is arithmetic, and the one place in the second cycle where the tārā-name and the biology agree without any help from me.

Set the wheel to station 15 →

Days 160–170 after conception · obstetric weeks 24.9–26.3Figure a drum (mṛdaṅga)Sign Makara pādas 1–2 · Kumbha pādas 3–4 · tārā Mitra, friendStar α, β, γ and δ Delphini — the Dolphin

Dhaniṣṭhā is the wealthiest — its older name, Śraviṣṭhā, means the most famous — and it is the little constellation of the Dolphin.^[5] Its gods are the eight Vasus, the Dwellers, who are the elements themselves: earth, water, fire, wind, sky, sun, moon and stars.^[1] Its classical figure is the mṛdaṅga, the two-headed drum of clay whose name means “made of earth.”^[4]

The fetus has a drum: a skin stretched over a hollow, struck in time. It is the diaphragm, and in Dhaniṣṭhā its rhythm changes. Pillai and James, watching fetuses for hours at a time, found that before the twenty-sixth week the diaphragm's commonest movement is the hiccup — sharp, regular, a drumbeat — and that hiccups fall away sharply between the twenty-fourth and twenty-sixth weeks while breathing movements, slower and deeper, rise from the twenty-sixth to the thirty-second.^[45] In the same ten days the hollows the drum will one day fill begin to form: the terminal sacs of the lungs, at twenty-six to twenty-eight weeks, and with them the first surfactant.^[24] And the child begins to keep time from outside as well as inside — its heart rate changes and it moves when a sound is made at the abdomen, a response that is consistent from the twenty-eighth week.^[42]

Text Order Image The drum is the essay's image for the diaphragm, and it is a better fit than I expected: a membrane over a cavity, beaten in a rhythm, whose rhythm changes in these very days from the hiccup's tap to the breath's slow stroke. The Dwellers who are the elements move into a body that is now, for the first time, answering the world with movement. The order is Pillai and James's twenty-fourth to twenty-sixth week; the text is the drum.

Set the wheel to station 17 →

Days 180–190 after conception · obstetric weeks 27.7–29.1Figure the front legs of a cot (mañca) (popularly a sword; a two-faced man)Sign Kumbha pādas 1–3 · Mīna pāda 4 · tārā Janma, birthStar Markab and Scheat (α and β Pegasi)

Aja Ekapād is one of the strangest gods of the Veda. The name means the One-Footed Goat, and he is a pillar — of lightning, or of the sky itself — standing between the waters and the heavens; but aja also means the Unborn, and the epithet has always carried both senses at once: the Unborn One-Footed.^[1,5] His station's classical figure is the front legs of a cot; the popular ones are a sword and a man with two faces.^[4,7] It is the nineteenth station and the first of the third cycle: the janma star for the third time.

The third trimester begins at twenty-eight weeks, and so does Pūrva Bhādrapadā. At twenty-eight weeks 94 per cent of children born will live; the question of viability, so raw in Uttarāṣāḍhā, is settled.^[41] What happens now happens in the brain. Since the middle of pregnancy the axons rising from the thalamus — the relay through which every sensation except smell must pass on its way to consciousness — have been waiting in a layer beneath the cortex called the subplate; between the twenty-fourth and twenty-eighth week after fertilization they leave it and enter the cortical plate, and for the first time the deep brain and the surface of the brain are connected.^[46] This is the anatomical floor of sensation — the earliest wiring on which anything like feeling could stand. The startle to sound becomes consistent; by Moore's table the eyes are open and there is a good head of hair.^[24,42]

Text Order Image The Unborn who stands on one foot is the fetus of the third trimester: complete, viable, still inside. The single foot is the essay's image for the pillar of axons rising from the depths to the surface of the mind in these weeks — the one connection on which every later sensation stands; the two-faced man is the two hemispheres. That the third cycle of nine opens with the third trimester is the wheel's arithmetic, and the name the tradition gave this god is the best single epithet for an eight-month fetus I know.

Set the wheel to station 19 →

Days 200–210 after conception · obstetric weeks 30.6–32Figure a drum (mṛdala) (popularly a fish; a drum)Sign Mīna pādas 1–4 · tārā Vipat, dangerStar ζ Piscium

Revatī, the abundant, the wealthy, is the last nakṣatra of the zodiac, in the Fishes.^[5] Its god is Pūṣan, the herdsman of the Ṛgveda, who knows every road, guards travellers, finds what is lost, and eats karambha, curd mixed with meal, because — the Brāhmaṇas say — the sacrificial portion knocked out his teeth.^[1,12,18] Its classical figure is a drum; the popular one is a fish.^[4,7]

The traveller finds the road in Revatī. At twenty-eight weeks about a quarter of fetuses lie breech, bottom down; by thirty-two weeks fewer than one in ten do, and by term fewer than one in twenty-five: in the four weeks that Revatī sits in the middle of, most children that were lying the wrong way turn, in the water, to lie head-down, the only way out.^[48] In the same ten days fat is laid under the skin, so that the wrinkled red skin of the sixth month fills and smooths; the toenails appear; and the fetus, at about 1.7 kilograms, has half its birth weight still to gain.^[24] Revatī is also the last house of the sky: with it the pointer has visited every nakṣatra once, though the road has nine stations to go before it comes round to Mithuna.

Text Order Image The god of roads and of the lost keeps the station in which the traveller turns onto the road — text and order both, since the turning is concentrated in the twenty-eighth to thirty-second weeks and Revatī is the thirty-first and thirty-second. The toothless god who lives on gruel presides over a child that will be born toothless and live on milk; that is the essay's image, and so is the fish that turns in the water in the sign of the Fishes.

Set the wheel to station 21 →

Days 220–230 after conception · obstetric weeks 33.4–34.9Figure the yoniSign Meṣa pādas 1–4 · tārā Pratyari, obstacleStar 35, 39 and 41 Arietis

Bharaṇī is she who bears, from bhṛ, to carry — three faint stars in the Ram.^[5] Its god is Yama, the Restrainer, the first mortal to die and find the road the dead take, whose name also means twin; the classical figure of the star is the yoni, and Monier-Williams, who did not care for the word, wrote “figured by the pudendum muliebre.”^[1,4,5]

The bearer's station is the one in which the mother bears the most. The amniotic fluid, which the child has been making since Pūrvāṣāḍhā, reaches its greatest volume at about the thirty-fourth week — Brace and Wolf's pooled curve peaks near 930 millilitres — and declines from there to term, so that the fetus, still growing fast, meets the walls of its room for the first time and its great rolling movements give way to smaller ones.^[40] At about 2.1 to 2.4 kilograms, a child born in these days is “late preterm,” and nearly all born now breathe unaided and go home.^[24,52]

Text Order Image The bearer's station is the peak of the burden, and the peak of the waters falls at thirty-four weeks, inside Bharaṇī's thirty-third-and-a-half to thirty-fifth: text and order. Yama the Restrainer is the essay's reading of the room closing in; the yoni, which the classical texts made the star's own shape, is the door the child now faces, and the last thing it will pass.

Set the wheel to station 23 →

Days 240–250 after conception · obstetric weeks 36.3–37.7Figure a cart (anas) (popularly an ox-cart; a chariot)Sign Vṛṣabha pādas 1–4 · tārā Vadha, deathStar Aldebaran (α Tauri) and the Hyades

Rohiṇī is Aldebaran, the red eye of the Bull, and the name means both the red one and the growing one, from ruh, to grow, to rise; Monier-Williams glosses it first as “a red cow.”^[5] Her god is Prajāpati, Lord of Creatures, whom the conception hymn asks to “infuse the stream”; her classical figure is a cart, anas.^[1,4,9] She is the Moon's favourite among his twenty-seven wives, and she is the heroine of the oldest story the Brāhmaṇas tell about the sky, which begins here and ends two stations on.

The growing one has grown. Rohiṇī runs from the thirty-sixth week to the thirty-eighth, and at thirty-seven weeks the child is at term — “early term,” in the current definition, with “full term” beginning at thirty-nine.^[52] It gains about 200 grams a week, and the mother's antibodies, half-delivered in Aśvinī, now rise steeply toward and past her own level.^[24,49] There is nothing left to build. The cart is loaded.

Text Order Image The star named the growing one keeps the station in which growing is finished and term begins — text and order — and her god is the creator of the conception hymn, who has completed his creature. But the Aitareya Brāhmaṇa tells one more story about Rohiṇī: Prajāpati desired his own daughter, “the Sky, say some; Uṣas, say others,” and pursued her as a stag pursues a red doe, rohit; the gods made from their most dreadful parts a hunter to stop him; and when the hunter's arrow struck, the stag became the constellation Mṛga, the hunter Mṛgavyādha, the doe Rohiṇī, and the arrow the three-jointed arrow that is Orion's belt.^[12,13] The last three stations of the wheel are that story's three stars, and section VI reads them together.

Set the wheel to station 25 →

Days 260–270 after conception · obstetric weeks 39.1–40.6Figure a gem (maṇi) (popularly a teardrop; a diamond)Sign Mithuna pādas 1–4 · tārā Atimitra, great friendStar Betelgeuse (α Orionis)

Ārdrā means the moist one, the wet; it is Betelgeuse, the red star on Orion's shoulder, and its god is Rudra.^[1,5,6] Its classical figure is a gem, maṇi; the popular tradition sees a teardrop.^[4,7] The Viṣṇu Purāṇa tells how Rudra got his name: a youth sprang from Brahmā “crying with a low cry, and running about”; asked why he wept, he asked for a name; “Rudra be thy name,” said Brahmā, from rud, to weep — “desist from tears.”^[14] In the Brāhmaṇa story he is the hunter, Mṛgavyādha, the Deer-Slayer, whose arrow finds the stag; in the sky the hunter is Sirius, at Orion's heels.^[5,13]

The last station is wet. The obstetric due date, 266 days after conception, falls on Ārdrā's seventh day; the measured median of human pregnancy, 268 days from ovulation, falls on its ninth; and the twenty-seventh station ends on day 270, thirty-eight and a half weeks after conception, which is the fortieth week and a half by the count on every mother's chart.^[28,52] Somewhere in these days, for most women, the membranes rupture and the waters that the child has been making since Pūrvāṣāḍhā come out first; the head that engaged in Mṛgaśīrṣa is driven down and turned; and the child comes out slick, streaked, wet to the hair, and does the thing Rudra was named for. It howls. The cord is cut; the lungs, dry for the first time, fill; the first breath is a cry. The median child weighs about three and a third kilograms and is half a metre long.^[54]

Text Order Image The station named the Wet One, whose god was named for weeping, is the station in which the child is born wet and crying: text and order together, with the median birth landing two days short of the station's end. The hunter's arrow is the essay's image for the cut cord and for the shock of the first breath, and the gem for what is held afterward. And the ring closes where it opened. Punarvasu began in Mithuna with two cells becoming one; Ārdrā ends in Mithuna, the sign of the Couple, with one body becoming two — a mother and a child, the new pair, in the place the sky keeps for pairs.

Set the wheel to station 27 →

What it is. A schematic clock. Twenty-seven equal stations of ten days, laid from conception, against the embryology of those days as the standard texts give it.^[24,26] The real Moon has nothing to do with it: in a pregnancy the Moon runs through all twenty-seven houses about ten times, and no one's Moon sat in Puṣya for ten days while they implanted. The wheel is a reading of one sequence against another, and its claim is only that the two sequences, so laid, rhyme more often than chance would lead one to expect — and its evidence for that is the labels.

The labels. Every station carries up to three. Text means the correspondence is in the star's own name, god or classical figure, as the Taittirīya lists, the shapes verse and Monier-Williams give them.^[1,2,4,5] Order means the embryological event falls inside the station's ten days by the published dates — I did not move a window or a milestone to make one fit, and where a source's age convention matters (Moore counts from fertilization, the obstetric papers from the last period) I have said which is which. Image means the correspondence is mine. Twenty-five of the twenty-seven stations carry an Order label; Svātī and Uttara Bhādrapadā do not, because the events I paired with them — breathing movements, the folding of the cortex — are processes of months that those stations merely sit inside. The reader should assume a friendly hand on the scales even so: I chose, for each station, the events in its window that spoke to the star, not the events that did not, and a station with ten days in it always has something happening. What I can say is that the strongest pairings — Puṣya and the trophoblast, Āśleṣā and the neural tube, Bhaga and the switch of sex, Aryaman and day fifty-six, Hasta and the grasp, Tvaṣṭṛ and the forms, Viśākhā and the trimester gate, Mitra and quickening, Indra and the audible heart, Mūla and the germ-cell peak, the Waters and the sealed skin, Uttarāṣāḍhā and viability, Śravaṇa and the cochlea, Dhaniṣṭhā and the hiccups, Varuṇa and the eyes, Aja Ekapād and the thalamus, Pūṣan and the turning, the Aśvins and the antibodies, Bharaṇī and the peak of the waters, Kṛttikā and the lanugo, Rohiṇī and term, Mṛgaśīrṣa and engagement, Ārdrā and the median birth — are dated to the week by their sources, and the dates are in the bibliography for anyone who wants to move the pointer and check.

The nine-fold count. The three janma stars falling on conception and the two trimester boundaries is real arithmetic. The rest of the navatāra is mixed, and I would rather say so than hide it in the panel. The sādhaka stars — Uttarā Phalgunī, Uttarāṣāḍhā, Kṛttikā — fit well: the completed embryo, viability, and readiness to feed are accomplishments. Two of the three sampat stars fit — Puṣya's nourishment and Anurādhā's first felt movement. Āśleṣā as vipat, danger, fits the neural tube; Bharaṇī as pratyari, the obstacle, fits Yama and the closing room; Aśvinī as kṣema, safety, fits the physicians. But Mūla as kṣema is a flat contradiction — the goddess of dissolution in the station of safety — and the vadha stars, Hasta, Śravaṇa and Rohiṇī, have nothing deathly about them unless one counts the degenerating mesonephros in Hasta or the pierced doe in Rohiṇī, which I do not. Roughly ten of the twenty-seven tārā-names read well against their stations; the trimester boundaries are the finding, and the rest is noted for completeness.^[7,8]

Two textual cautions. The deities are the jyotiṣa deities, which differ from the oldest Vedic list at four places: the Taittirīya Saṃhitā gives Citrā and Śatabhiṣaj to Indra and Mūla to the Fathers, and has Aryaman before Bhaga in the two Phalgunīs; Tvaṣṭṛ, Varuṇa and Nirṛti are already in the Taittirīya Brāhmaṇa's Nakṣatreṣṭi, and the Phalgunī reversal is Purāṇic.^[1,2,3] Had I used the Vedic list, Citrā would lose Tvaṣṭṛ and the conception hymn, Śatabhiṣaj would lose the thousand-eyed god, and the two beds would swap gods but not events; the reader may weigh those three stations accordingly. And the emblems: the shapes I call classical are from a Sanskrit verse-pair that the muhūrta tradition attributes to the Muhūrtacintāmaṇi of 1600, and that I have not been able to check against an edition of that text; the shapes I call popular — the udder, the lotus, the umbrella, the fan, the fish, the teardrop, the coiled serpent — are modern, from the handbooks practitioners actually use, and I have drawn several of them on the wheel because they are the images the stations now carry.^[4,7] Where the two disagree the panel gives both.

What it is not. It is not medicine and it is not a due-date calculator. The date tool below the wheel does arithmetic on the number you give it — conception, or the last period plus fourteen days, or the due date less 266 — and a real pregnancy varies by five weeks around any of those; the wheel will tell you which station a pregnancy is in on its own reckoning and nothing more. Nor is it a claim about the Moon, or about what the makers of the nakṣatra lists knew. It is a way of reading twenty-seven very old names in an order they were not, so far as I know, ever read in before, and finding that the order tells a story the body also tells. The finding is the rhyme; the rest is the pleasure of turning the wheel.